Lacking the existence of a @JsonWrapped annotation, my personal preferred solution here would be to use the converter functionality of @JsonSerialize (looks like you'd need Jackson 2.3+ for this; the annotation is supported in 2.2.2 but I got unexpected runtime errors). Basically, a converter lets you do a pre-serialization transformation...

The name of your ArrayList in PriceUpdateTypeDTO needs to have the same name as the array in the JSON: Change private ArrayList<PriceUpdateItemDTO> items; to private ArrayList<PriceUpdateItemDTO> priceUpdate; or vice-versa (change the name of the array in the JSON to "items")...

From my experience I prefer to add a toString() method in all POJO classes because it helps if you want to print the current state of an instance, using a logging framework or not. The default toString() method outputs a string formed from: getClass().getName() + '@' + Integer.toHexString(hashCode()). That is...

Using an IDE(Integrated Development Environment) can help you find usages in code. Example: Intellij IDEA - default keymapping is Alt+F7. In Netbeans it's alt+u. Usually when you right click a method name in the IDE the find usages option should appear. You can also use a file manager such as...

Use of @JsonUnwrapped for groupa and groupx would allow flattening of those. And then possibly use of annotation for denoting serialize-as-attribute (@JacksonXmlProperty(attribute=true) or something) on properties could do it.

You can use the extensible Slick code generator to generate mappings to your existing classes instead of new case classes. You probably would want to enable = false some of the inner classes of the code generator and override the EntityType to generate simple factories instead of case classes. See...

jsonschema2pojo team says it has been implemented: jsonschema2pojo/issues "Fixed for 0.3.7. There is now a new extension property "javaInterfaces" that takes an array of strings, where each string is the fully qualified name of a Java interface. The generated type will implement those interfaces."...

You can use getResourceAsStream method on External context to read the file from resources folder. InputStream iStream = FacesContext.getCurrentInstance().getExternalContext().getResourceAsStream("/resources/images/YOUR_IMAGE_NAME"); ...

I see a couple of potential issues here: You are defining a class inside another class; I have never seen it done like this. You might want to separate in two different files. Your variable names on your POJO should match the variable names on the JSON response exactly. For...

You can call cc.writeFile() right before or right after you call cc.toClass() to store a class file containing the bytecode of the generated class. I don’t know of an equivalent operation to get a source file, however, you may consider the fact that you are actually generating the source code...

Usually to parse JSON with the Jackson library, you would use the ObjectMapper class like this: public static void main(final String[] args) { final String json = "some JSON string"; final ObjectMapper mapper = new ObjectMapper(); final TestSuite readValue = mapper.readValue(json, TestSuite.class); //Then some code that uses the readValue. //Keep...

use http://www.jsonschema2pojo.org/ to create your java object model and do the following to call public interface PromoImagesAPI { @GET("/FriendsCMS/images/?type=photo&format=json") void promoImages(Callback<Images> callback); ...

Jackson doesn't have bean validation. But what you can do is to declare constructor as a JsonCreator that will be used to instantiate the new object and check/throw an exception in case if that field is null: class ProcessingException { private String errorMessage; @JsonCreator public ProcessingException(@JsonProperty("errorMessage") String errorMessage) { if...

The page and component classes in a Tapestry app are not required to extend a framework class, implement a framework interface, or use framework annotations. In that sense they are POJOs. However, you are free to do any of those yourself, and Tapestry does provide annotations that are a convenient...

First, dataPOJO should not be extending Phone_Save. There's nothing dataPOJO needs to do that depends on it being an Activity (at least based on what you've shown us). If you want to have that class to store those information in one place, that's fine; otherwise just store them in Phone_Save...

You have an empty implementation of addTableModelListener. You can fire whatever event you want, if nobody can register a listener to your model the events will never be received by the listeners. So remove the following parts from your code @Override public void addTableModelListener(TableModelListener ml) { } @Override public void...

Whether you break it down depends on the requirements of the application you are building. If it were me, I would consider keeping separate beans, one for the bean that Castor needs to deserialize the XML (using the DTO pattern), other beans that make the information more usable and are...

You should store it in something persistent like SharedPreferences. When the app goes into the background, the whole process could be destroyed without warning. When you return to the app, the fields of your POJO will be uninitialized, or the reference to the POJO itself will be null, depending now...

Problem was in setter method Before fix: public void setFriends(Set<String> friends) { this.friends = new HashSet<>(friends) } To fix just need to add validation public void setFriends(Set<String> friends) { if (friends != null) { this.friends = new HashSet<>(friends) } } Hopefully this will help to avoid same mistakes for others....

A POJO is a Plain Old Java Object, which is a class with fields and getters/setters. I don't think somebody that works with Java is new to POJOs unless it is learning Java. This is why I won't give the exact class structure, otherwise I would be doing your job....

This is really opinion based, but for what it's worth I use loggers only when I need to log functionality for debugging/info/error purposes. For example if your class has a set of properties and returns a collection of those properties you likely do not need to add a logger, but...

In the meantime we were able to fix this problem as we changed our Java EE application server from WebLogic 10.0 to GlassFish 3 as well as changed the used persistence provider from OpenJPA 1.0.0.1 to EclipseLink 2.5.1. One of these changes fixed the problem, probably the switch to EclipseLink....

Do not use a string for the _id. This will fix your problem: @Id protected ObjectId id; While you could use protected String id (this shouldn't create duplicates IMHO), you'll have problems if you use @Reference and might run into weird edge cases elsewhere, so avoid it if possible....

I am officially a dumb scrub and completely looked over the easiest possible fix and should have my account and developer title revoked. This is all I should have done: public class ItemGroup { private String version; private Map<String,Item> data; //...Man i'm so dumb... } AS REFERENCE FOR THE FUTURE....

You may use java reflection. For simplicity I assume your Employee calss only contains int field. But you can use the similar rules used here for getting float, double or long value. Here is a complete code - import java.lang.reflect.Field; import java.util.List; class Employee{ private int m=10; private int n=20;...

Probably, what you need is another layer of abstraction. Since your pojos are recreated after new migrations, you shouldn't insert code in it (I don't agree with that aproach, but that's just my opinion :-) ) JSP -> Servlet -> NewLayer -> POJO I don't know where you put your...

There are three issues with your code: 1) You need to pass the properties that are going to be read to the CSV schema, in your case these are address1 and address2: CsvSchema schema = CsvSchema.builder() .addColumn("address1") .addColumn("address2") .build(); 2) Your inner class is not marked as static, check this...

You can define a custom comparator and pass it to Collections.sort(), as suggested by @Robby, you can use Month enum like public class CustomComparator implements Comparator<DummyPage> { @Override public int compare(DummyPage o1, DummyPage o2) { return Month.valueOf(o1.getMonth().toUpperCase()).compare(Month.valueOf(o2.getMonth().toUpperCase())); } } and Collections.sort(list , new CustomComparator()); Also looks like you already have...

I guess you have to use @SerializedName to map Name to name check this pojo parse gson with invalid java names In your Pojo you have to annotate like this. @SerializedName("name") private final Name; ...

I see two options: Setting the credentials as System Properties using -M-Dproperty in command line and retrieving it from your POJO using java.lang.System.getProperty("property") Configuring the credentials in a .properties file and retrieve them from the Property placeholder from the Mule Registry. You can implement org.mule.api.context.MuleContextAware perhaps, or a Lookup annotation....